Throughout the past decades, ct has become an invaluable tool in diagnostic radiology.
However, along with its ever-increasing usage have come concerns about the associated risks from ionizing radiation exposure [1]}.
Approaches that try to remedy this problem include hardware measures such as tube current reduction or modulation (for instance in the form of automatic exposure control [2]}), adaptive section collimation [3]}, or angular under-sampling [4]}, [5]}.
Such measures are now standard in clinical ct systems, but require robust reconstruction algorithms.
